public override bool Equals(Object obj)
{
//Check for null and compare run-time types.
if (obj == null || !(obj is Int32Int32DateO))
{
return(false);
}
Int32Int32DateO item = (Int32Int32DateO)obj;
return(this.Int32Int32Date.Int1 == item.Int32Int32Date.Int1 &&
this.Int32Int32Date.Int2 == item.Int32Int32Date.Int2 &&
this.Int32Int32Date.Date1 == item.Int32Int32Date.Date1);
}
static void Main(string[] args)
{
Int32Int32DateO iid1 = new Int32Int32DateO(0, 1, new DateTime(2007, 6, 1, 8, 30, 52));
Int32Int32DateO iid2 = new Int32Int32DateO(0, 1, new DateTime(2007, 6, 1, 8, 30, 52));
if (iid1 == iid2)
{
Console.WriteLine("same");
}
if (iid1.Equals(iid2))
{
Console.WriteLine("equals");
}
// that are equal but not the same I don't override = so I have both features
Int32Int32DateCollection int32Int32DateCollection = new Int32Int32DateCollection();
// dont't have to repeat the key like Dictionary
int32Int32DateCollection.Add(new Int32Int32DateO(0, 0, new DateTime(2008, 5, 1, 8, 30, 52)));
int32Int32DateCollection.Add(new Int32Int32DateO(0, 1, new DateTime(2008, 6, 1, 8, 30, 52)));
int32Int32DateCollection.Add(iid1);
//this would thow a duplicate key error
//int32Int32DateCollection.Add(iid2);
//this would thow a duplicate key error
//int32Int32DateCollection.Add(new Int32Int32DateO(0, 1, new DateTime(2008, 6, 1, 8, 30, 52)));
Console.WriteLine("count");
Console.WriteLine(int32Int32DateCollection.Count.ToString());
// reference by ordinal postion (note the is not the long key)
Console.WriteLine("oridinal");
Console.WriteLine(int32Int32DateCollection[0].GetHashCode().ToString());
// reference by index
Console.WriteLine("index");
Console.WriteLine(int32Int32DateCollection[0, 1, new DateTime(2008, 6, 1, 8, 30, 52)].GetHashCode().ToString());
Console.WriteLine("foreach");
foreach (Int32Int32DateO iio in int32Int32DateCollection)
{
Console.WriteLine(string.Format("HashCode {0} Int1 {1} Int2 {2} DateTime {3}", iio.GetHashCode(), iio.Int1, iio.Int2, iio.Date1));
}
Console.WriteLine("sorted by date");
foreach (Int32Int32DateO iio in int32Int32DateCollection.OrderBy(x => x.Date1).ThenBy(x => x.Int1).ThenBy(x => x.Int2))
{
Console.WriteLine(string.Format("HashCode {0} Int1 {1} Int2 {2} DateTime {3}", iio.GetHashCode(), iio.Int1, iio.Int2, iio.Date1));
}
Console.ReadLine();
}
